Show AWS cron schedule.
USAGE:
curl cronplan.in -d '5 0 * * ? *'
curl cronplan.in/15 -d '*/5 10 ? * FRI *'
curl -H 'accept: application/json' cronplan.in -d '5 0 * * ? *'
curl cronplan.in -G --data-urlencode 'e=5 0 * * ? *'
curl https://cronplan.in/15?e=*/5+10+?+*+FRI+*
Cron expr spec: https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-cron-expressions.html
Implemented by https://github.com/winebarrel/cronplan